Method of assigning provisional identification to a subscriber unit and group

Abstract

The present disclosure provides an efficient and effective method for allocating provisional PUIDs and PGIDs to subscriber units and groups during a failure, such that when the communication system recovers, there is a decrease in or elimination of the number of dropped or missed communications. The present disclosure reserves a range of provisional PUIDs and PGIDs for resource controllers operating in a region of system failure to assign when subscriber units roam into the region of failure in the communication system. The present disclosure addresses creating PUID and PGID ranges for resource controllers to assign to roaming subscriber units in order to allow for assignment of PUIDs and PGIDs during periods of subsystem isolation and site trunking, i.e., when the particular site or subsystem cannot communicate with the rest of the communication system. The present disclosure also addresses recovering from these situations, re-registration, and reallocation of PUIDs and PGIDs.

Description

TECHNICAL FIELD OF THE DISCLOSURE[0001]This disclosure relates generally to communication systems, and more particularly, the present disclosure pertains to a method of assigning a provisional unit identification (provisional group identification) to a subscriber unit (subscriber group) during communication system failures.BACKGROUND OF THE DISCLOSURE[0002]Public and private safety communications using land mobile radio services have been growing at a steady rate. As such, it is becoming increasingly important for organizations and their respective communication systems to interoperate with one another. Interoperability between organizations includes the ability of a first organization's communication network and / or system to support a second (foreign) organization's subscriber units when subscriber units from the second organization roam into the first organization's communication network and / or system. In other words, it is important for subscriber units to have the ability to tra...

AI Technical Summary

Problems solved by technology

While subscriber units currently are able to efficiently receive and use resources from foreign communication systems during normal or non-failure situations, often subscriber units, physically located in, but foreign to, a communication system (“roaming subscriber units”) miss or drop communications when a site or subsystem within the foreign communication system is in a failure mode, such as site trunking or subsystem isolation, respectively.

However, when the site or subsystem in which the subscriber unit is physically located experiences a failure, such as site trunking or subsystem isolation, the subscriber units affiliated with the non-native subscriber group may miss or drop communications.

One reason for missed and dropped communications is because of the lack of a comprehensive and effective method in which the subscriber unit is identified and allocated resources by the communication system during and after the communication system failure.

Currently, there is no effective method to identify roaming subscriber units and assign provisional unit identification to roaming subscriber units during, or in the event of, a communication system failure.

Similarly, there is no effective method for identifying and assigning provisional group identifications for non-native subscriber groups during, or in the event of, a communication system failure.

In addition, there is no method to effectively request that the roaming subscriber units or non-native subscriber groups re-register with the communication system when the failure situation no longer applies, without the roaming subscriber unit or the subscriber unit affiliated with the non-native subscriber group missing or dropping communications.

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